1/*
2 *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#ifndef WEBRTC_LIBJINGLE_XMLLITE_QNAME_H_
12#define WEBRTC_LIBJINGLE_XMLLITE_QNAME_H_
13
14#include <string>
15
16namespace buzz {
17
18class QName;
19
20// StaticQName is used to represend constant quailified names. They
21// can be initialized statically and don't need intializers code, e.g.
22//   const StaticQName QN_FOO = { "foo_namespace", "foo" };
23//
24// Beside this use case, QName should be used everywhere
25// else. StaticQName instances are implicitly converted to QName
26// objects.
27struct StaticQName {
28  const char* const ns;
29  const char* const local;
30
31  bool operator==(const QName& other) const;
32  bool operator!=(const QName& other) const;
33};
34
35class QName {
36 public:
37  QName();
38  QName(const QName& qname);
39  QName(const StaticQName& const_value);
40  QName(const std::string& ns, const std::string& local);
41  explicit QName(const std::string& merged_or_local);
42  ~QName();
43
44  const std::string& Namespace() const { return namespace_; }
45  const std::string& LocalPart() const { return local_part_; }
46  std::string Merged() const;
47  bool IsEmpty() const;
48
49  int Compare(const StaticQName& other) const;
50  int Compare(const QName& other) const;
51
52  bool operator==(const StaticQName& other) const {
53    return Compare(other) == 0;
54  }
55  bool operator==(const QName& other) const {
56    return Compare(other) == 0;
57  }
58  bool operator!=(const StaticQName& other) const {
59    return Compare(other) != 0;
60  }
61  bool operator!=(const QName& other) const {
62    return Compare(other) != 0;
63  }
64  bool operator<(const QName& other) const {
65    return Compare(other) < 0;
66  }
67
68 private:
69  std::string namespace_;
70  std::string local_part_;
71};
72
73inline bool StaticQName::operator==(const QName& other) const {
74  return other.Compare(*this) == 0;
75}
76
77inline bool StaticQName::operator!=(const QName& other) const {
78  return other.Compare(*this) != 0;
79}
80
81}  // namespace buzz
82
83#endif  // WEBRTC_LIBJINGLE_XMLLITE_QNAME_H_
84